Raven AccuFlow, Installation & Operation Manual

Page: 55 / 90

Manual No. 016-0171-496 Rev. C 51
Service and Maintenance
7
Servicing and Storing the AccuFlow™
System
When storing the AccuFlow or AccuFlow HP system or when the system will not be used for extended periods,
clean the inside of the super cooler with kerosene and coat with a 10 weight motor oil. Refer to the following
section for instructions on disassembling the AccuFlow super cooler to perform service or maintenance.
Opening the Super Cooler
1.
Refer to the Discharging the AccuFlow™ System section on page 50. Ensure that all NH
3
has evaporated
and vapors have been exhausted before proceeding.
2.
Disconnect all external plumbing and fittings from the super cooler assembly and remove the super cooler
from the mounting brackets or mounting frame.
3.
Use a vise to clamp the super cooler with the relief valve pointed upward.
4.
Remove the four bolts on the super cooler closest to the Intake.
5.
Remove the inner assembly with a twist-pull motion.
6.
Clean residue from the inner assembly and inspect the super cooler assemblies for damage and wear.
7.
After cleaning and inspecting the assembly, lubricate the two o-ring seals with brake fluid and reseat seals
on the intake end of the super cooler before reassembling.
8.
Insert the inner assembly into the casing and replace the four bolts at the intake end of the super cooler
assembly.
9.
Place the super cooler on mounting brackets and re-tighten the mounting hardware.
DANGER
Anhydrous ammonia can cause severe burning,
blindness, or death. Refer to the
Discharging
the AccuFlow™ System section on page 50
and follow the procedure for bleeding the
AccuFlow system before beginning
maintenance.
CAUTION
Anhydrous ammonia residue may be present
within the super cooler chamber. Wear
protective clothing and gloves when working
with anhydrous ammonia products or servicing
the AccuFlow system.
CAUTION
DO NOT FORCE. The super cooler assembly
should separate with moderate and steady
pressure.